<template>
	<div class="upload-file w-full">
		<a-upload
			:custom-request="uploadFileHandler"
			:show-file-list="false"
			:multiple="config.multiple"
			:accept="config.accept"
			:disabled="config.disabled"
			:tip="config.tip"
			:draggable="config.draggable"
			:limit="config.limit"
		>
			<template #upload-button v-if="config.draggable">
				<slot name="customer">
					<div style="background-color: var(--color-fill-2); border: 1px dashed var(--color-fill-4)" class="rounded text-center p-7 w-full">
						<div>
							<icon-upload class="text-5xl text-gray-400" />
							<div class="text-red-600 font-bold">
								{{ config.title === 'buttonText' ? $t('upload.buttonText') : config.title }}
							</div>
							将文件拖到此处，或<span style="color: #3370ff">点击上传</span>
						</div>
					</div>
				</slot>
			</template>
		</a-upload>
	</div>
	<!-- 单文件 -->
	<div class="file-list mt-2" v-if="!config.multiple && currentItem?.url && config.showList">
		<a-button class="delete" @click="removeSignFile()">
			<template #icon><icon-delete /></template>
		</a-button>
		<div class="file-item">
			{{ currentItem.url }}
		</div>
	</div>

	<!-- 多文件 -->
	<div v-if="config.showList" class="file-list mt-2" v-for="(file, idx) in showFileList" :key="idx">
		<a-button class="delete" @click="removeFile(idx)">
			<template #icon><icon-delete /></template>
		</a-button>
		<div class="file-item">
			{{ file.url }}
		</div>
	</div>
</template>
<script setup>
import { ref, inject, watch } from 'vue'
import tool from '@/utils/tool'
import { isArray } from 'lodash'
import { getFileUrl, uploadRequest } from '../js/utils'
import { Message } from '@arco-design/web-vue'

import { useI18n } from 'vue-i18n'
const { t } = useI18n()

const props = defineProps({
	modelValue: { type: [String, Number, Array], default: () => {} },
})
const emit = defineEmits(['update:modelValue'])
const config = inject('config')
const storageMode = inject('storageMode')
const showFileList = ref([])
const signFile = ref()
const currentItem = ref({})

const uploadFileHandler = async (options) => {
	if (!options.fileItem) return
	if (!config.multiple) {
		currentItem.value = options.fileItem
	}
	const file = options.fileItem.file
	if (file.size > config.size) {
		Message.warning(file.name + ' ' + t('upload.sizeLimit'))
		currentItem.value = {}
		return
	}

	const requestData = {
		...config.requestData,
		mode: config.uploadMode,
	}

	const result = await uploadRequest(file, 'file', 'uploadFile', requestData)

	if (result) {
		result.url = tool.attachUrl(result.url, storageMode[result.storage_mode])
		if (!config.multiple) {
			signFile.value = result[config.returnType]
			emit('update:modelValue', signFile.value)
			currentItem.value.url = result.url
		} else {
			showFileList.value.push(result)
			let files = []
			files = showFileList.value.map((item) => {
				return item[config.returnType]
			})
			emit('update:modelValue', files)
		}
	} else {
		currentItem.value = {}
	}
}

const removeSignFile = () => {
	currentItem.value = {}
	signFile.value = undefined
	emit('update:modelValue', null)
}

const removeFile = (idx) => {
	showFileList.value.splice(idx, 1)
	let files = []
	files = showFileList.value.map((item) => {
		return item[config.returnType]
	})
	emit('update:modelValue', files)
}

const init = async () => {
	if (config.multiple) {
		if (isArray(props.modelValue) && props.modelValue.length > 0) {
			const result = await props.modelValue.map(async (item) => {
				return await getFileUrl(config.returnType, item, storageMode)
			})
			const data = await Promise.all(result)
			if (config.returnType === 'url') {
				showFileList.value = data.map((url) => {
					return { url }
				})
			} else {
				showFileList.value = data.map((item) => {
					return { url: item.url }
				})
			}
		} else {
			showFileList.value = []
		}
	} else if (props.modelValue) {
		if (config.returnType === 'url') {
			signFile.value = props.modelValue
			currentItem.value.url = props.modelValue
		} else {
			const result = await getFileUrl(config.returnType, props.modelValue, storageMode)
			signFile.value = result.url
			currentItem.value.url = result.url
		}
		currentItem.value.percent = 100
		currentItem.value.status = 'complete'
	} else {
		removeSignFile()
	}
}

watch(
	() => props.modelValue,
	(val) => {
		init()
	},
	{
		deep: true,
		immediate: true,
	}
)
</script>

<style lang="less" scoped>
.file-list {
	position: relative;
	background-color: var(--color-primary-light-1);
	border-radius: 4px;
	height: 36px;
	line-height: 36px;
	padding: 0 10px;
	width: 100%;
	.delete {
		position: absolute;
		z-index: 99;
		right: 2px;
		top: 2px;
	}

	.progress {
		position: absolute;
		left: 30px;
		top: 50%;
		transform: translateX(-50%) translateY(-50%);
	}
}
</style>
